Latch and lock combined



(No Modptj A C. E. AMES.

LATH AND LOCK OMBINED.

Patented Sept'. 29, 1896.

,Charte-5F01 mrS,

' said reduced portion of the bolt between the ATENT OFFICE.

CHARLES ELSVCRTII AMBS,

OF MATTESON, MICHIGAN.

LATCH AND LOCK COMBINED.

SPECIFICATION forming part of Letters Patent No. 568,653, datedSeptember 29, 1896.

Application filed May ll., 1896. Serial No. 591,083. (No model.)

T0 all whom t may concern:

Be it known that I, CHARLES ELswonTn AMBS, a citizen of the UnitedStates, residing in Matteson township, in the .county of Branch andState of Michigan, have invented a new and useful Combination Latch andLock, of which the following is a specification. My invention relates toa latch provided with locking devices where it is adapted to perform thefunctions of both a latch and a lock to simplify the construction ofdevices of this class.

Further objects andadvantages of this invention will appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a view of a latch constructed in accordancewith my invention. Fig. 2 is a longitudinal section of the same. Fig. 3is a detail view of the tumbler detached. Fig. 4 is a detail section atright angles to the plane of Fig. 2 through the tumbler and contiguousparts to show the means for'securing the same in place.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

1 designates a tubular casing or barrel provided at its outer end with aremovable cap 2, having securing devices which, in the constructionillustrated, consist of ears 3, perforated for the reception of screws.Mounted in the casing is a sliding latch-bolt 4, which projects throughan opening in the outer cap and is limited in its outward movement bymeans of a shoulder 5. The inner end of said bolt is reduced, as shownat 6, to form a stem which projects through a central guideopening in aremovable inner cap 7, fitted upon the casing, a spring 8 being coiledupon shoulder at the outer end of the body portion of the bolt and thesaid inner cap. The body portion of the bolt is also provided with acut-away-portion forming a shoulder -9 for engagement by the projections10 on the knobspindle 11. The knob-spindle carries the terminal knobs 12and is mounted in knob-spindle bearing-plates 13, adapted to be securedto the surfaces of the door or closure to which the locking device isattached.

Arranged upon the inner cap of the casing is a seat for a tumbler 14,said tumbler consisting of a revoluble disk provided with a keyhole 15,arranged in alinement with a keyhole 16in an extension 17 of one of theknobspindle bearing -plates The seat for the tumbler consists, in theconstruction illustrated, of a loop 18, provided with inwardlyextendinglugs or ears 19 to bear against the side surfaces of the tumbler, andparallel side strips 2O are connected to the sides of the loopcontiguous to the plane of the cap, said tumbler being provided with aradial slot 21,

adapted to be arranged either in or out of alinement with theguide-opening in the cap to either admit or exclude the bolt-stem orreduced portion. It is obvious that when the radial slot in the tumbleris in alinement with the guide-opening the bolt may be retracted againstthe tension of its actuating-spring by turning the knob-spindle, whereaswhen said slot is arranged out of alinement with the guide-opening thebolt-stem will strike the periphery thereof and be held from retraction.In order to prevent accidental displacement or turning of the tumbler, Iemploy frictionsprings 22, carried by the loop forming the seat for thetumbler and bearing at their eX- tremities against the side surfaces ofthe tumbler, said side surfaces being preferably provided with sidegrooves 23, in which the extremities of the springs lie when the slot ofthe tumbler is in alinement with the boltstern.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the spirit orsacrificing any of the advantages of this invention.

Having described my invention, what I claim is 1. The combination with alock-casing, a

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displacement thereof, substantially as specified.

2. The Combination with a tubular lock-casing, a spring-aetuated bolt,and means for retraeting the bolt against the tension of itsaemating-spring, of a cap removably iitted upon the inner end of theeasing and carrying a tumbler-seat having a loop and inwardly-projectinglugs or ears, a tumbler consisting of a disk mounted in said seat andprovided with a radial slot for alinement with a reduced ex tension ofthe bolt, and friction-Springs carried by the loop for Contact with theopposite Side surfaces of the tumbler, said surfaces of the tumblerbeing provided with depressions for engagement by the extremities o1.the friction springs, substantially as specified.

In testimony that I elaini the foregoing as my own I have hereto affixedmy signatu re in the presence of two witnesses.

CHARLES ELSlVORTII AMES.

Witnesses:

FRANK. E. HILL, I". D. LAMBERSON.

